Bob Friesenhahn

I have verified that GraphicsMagick oss-fuzz builds with everything (including x265) now, using "https://bitbucket.org/multicoreware/x265_git/src/stable/". I am not sure if GraphicsMagick should switch to using "https://bitbucket.org/multicoreware/x265_git/src/master/" since I have little knowledge...

It seems that the libheif oss-build installs the codec libraries under /src/deps/lib but then nothing in the build appears to specify that the libheif build should use that directory. I...

As a point of reference, the next GraphicsMagick oss-fuzz build will result in this build status report from the libheif component: ``` === Summary of compiled codecs === libde265 HEVC...

Note that I am improving the GraphicsMagick oss-fuzz build and GraphicsMagick capabilities related to HEIF are still very limited. I am adding more libheif codec options to the GraphicsMagick oss-fuzz...

The first thing that the libheif OSS-Fuzz build needs to accomplish is to change projects/libheif/build.sh so that it dispatches to a build script in libheif's own repository. This allows rapid...

The HEIF reader (user contributed source code) did not support multiple image frames and in fact rejects the input, even though it could have read the first frame. I plan...

The 'ldd' you did is for the 'convert' from ImageMagick. For GraphicsMagick you might consider 'ldd gm' (or if a modules build, on the installed heif.so module).

Under Ubuntu 22.04 LTS I see that the latest GraphicsMagick release is able to read HEIC files via libheif and libde265.

It is unlikely that anyone is going to spend any time on Ubuntu 23.10 since it is not an LTS release, and 24.04 LTS is available for upgrade now.

GraphicsMagick [oss-fuzz issue 368060014](https://issues.oss-fuzz.com/issues/368060014) ("Integer-overflow · png_colorspace_check_xy") seems to match this bug. Although it is described as being a security issue, it does not appear to be one so I...